martha: four men from southern california are now in custody. they are accused of plotting to wage violent jihad against military bases and other government facilities in that area. we learned one actually served in our armed forces. adam housley is live with usen this story. >> reporter: all four of the men are from the inland empire area of southern california. one did serve in the u.s. military, the u.s. air force back in 2001 and 2000. he's faced as the leader of these four. upland, to mona and ontario. kabir was arrested in afghanistan. he traveled there in july to set up terrorist training for these four suspects. these four men took trips to las vegas, chicago and san diego. they planned on bombing u.s. sites overseas. if they are convicted they could serve up to 15 years in prison. pretty serious charges against all four of them. martha: what about ties between these men and the former leader law anwar al-awlaki. he was killed by a mortar in 2011 in yemen. it was a big get to get anwar al-awlaki. these guys studied his teachings online.